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प्रश्न
Differentiate between members of the following pair with reference to what is asked in bracket.
Semi-circular canal and cochlea (Senses perceived)
उत्तर
cochlea is responsible for hearing; it can perceive the senses of hearing.
Semicircular canals are responsible for perceiving the senses to maintain the body balance.
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संबंधित प्रश्न
Explain how the human ear works.
Explain the following:
Mechanism through which a sound produces a nerve impulse in the inner ear.
For human ears, the audible range is 20 Hz to 20,000 Hz.
Eye : Optic nerve : : Ear : ___________
Mention the exact location of the Semi-circular canals
(i) Draw a well labelled diagram of the membranous labyrinth found in the inner ear.
(ii) Based on the diagram drawn above in (i) give a suitable term for each of the following descriptions :
1. The sensory cells that helps in hearing.
2. The part that is responsible for static balance of the body.
3. The membrane covered opening that connects the middle ear to the inner ear.
4. The fluid present in the middle chamber of cochlea.
5. The structure that maintains dynamic equilibrium of the body.
Briefly explain the following terms: Power of accommodation
Give scientific reasons: We cannot distinguish colours in moonlight.
Perilymph or endolymph (Which one surrounds the organ of Corti ?)
State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.
Semi-circular canals are concerned with static (positional) balance.
Where is the Utriculus located? Briefly mention its function.
With reference to the human ear, answer the question that follow:
Name the part of the ear associated with
(1) static balance
(2) hearing
(3) dynamic balance.
There are three small bones in the muddle ear – anvil, hammer and stirrup :
(a) Which of these bones is in touch with ear-drum ?
(b) Which of these bones is in touch with oval window ?
Why should we not put a pin or pencil in our ears ?
Write whether the following is true or false:
The part of the ear associated with balance is the cochlea.
Write whether the following is true or false:
Vitreous chamber is present in ear in humans.
State the functions of the following:
Semi-circular canals
The range of audible frequency for the human ear is
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Eyes: Photoreceptors :: Ears : ______.
